What Causes the Audi A4 to Shake When Accelerating?
1 Answers
Audi A4 shaking when accelerating can be caused by the following reasons: Engine Mount Deterioration or Loosening: The engine mount is the rubber block placed between the engine and the car frame. Its purpose is to reduce the vibration and shock generated during engine operation and to secure the engine in place. If these mounts become worn or loose, the engine's shaking will become significantly worse. Replacing the engine mounts can greatly reduce this issue. Carbon Buildup Problem: Cars inevitably face carbon buildup issues, which can include carbon deposits in the cylinders, throttle body, spark plugs, and intake system. When excessive carbon accumulates inside the engine, it affects the ignition energy, air intake efficiency, and air-fuel mixture ratio, leading to unstable power output. This results in shaking during both idle and acceleration. It is recommended to visit a 4S shop for an engine cleaning service. Fuel System Malfunction: Using an incompatible fuel grade can reduce the car's power output and performance. Additionally, a clogged fuel tank vent, blocked fuel tank switch, fuel filter, or fuel line between the tank and carburetor can restrict fuel supply, causing a lean air-fuel mixture and engine shaking. It is advisable to use the manufacturer-recommended fuel grade and perform regular maintenance.
